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5.
Which of the quadratic functions has the narrowest graph?

A. [tex]y=-2x^2[/tex]

B. [tex]y=\frac{1}{2} x^2[/tex]

C. [tex]y=\frac{1}{7} x^2[/tex]

D. [tex]y=-4x^2[/tex]


Sagot :

D: -4x^2 has the narrowest graph

Answer:

C.  y= 1/7x2

Step-by-step explanation:

The equation with the highest leading coefficient (the number before the x^2 term) will have the narrowest graph. Here, we have to choose between -1, 1/6, 2, and 1/8. The highest number out of all of those numbers is 2, so y = 2x^2 will have the narrowest graph.